Why are number buttons 1-6 not working?

Microwave oven model AMV1150VAW-1

will not allow me to press the numbers 1-6

but 7-0 still work. How do I get all numbers

to work again?

crwdns2893858:0crwdne2893858:0 crwdns2893862:0crwdne2893862:0

crwdns2894050:0crwdne2894050:0

crwdns2889612:0crwdne2889612:0 0
crwdns2892346:0crwdne2892346:0